Vision and fitness to drive

The chapter covers visual acuity, visual fields, absence of the lens, night blindness and double vision. Some conditions also require an ophthalmologist’s opinion.

The 2013 table specifies 6/12 in one eye. Glasses or contact lenses may allow a recommendation requiring their use while driving; the other requirements must also be met.

Yes. The table specifies 6/12 in each eye. With optical correction, it also specifies a difference of no more than 4.5 dioptres between the corrective lenses.

The table provides for this subject to the required visual acuity and field. This does not establish fitness for a professional licence, for which different requirements apply.

The table specifies at least 120 horizontal degrees for private vehicles and 140 for professional vehicles. Conditions concerning the type of field defect also apply; width alone is not sufficient.

The document describes impaired depth perception and spatial orientation. The table indicates unfitness, while allowing consideration of a restricted recommendation under its specified conditions.

The background chapter states that colour-vision tests are not among the medical requirements for a driving-licence recommendation in this edition.

The chapter discusses restricting driving to periods with sufficient light for people with night blindness. Consult the table and the precise restriction; this is not permission to drive at every daytime hour.

The document emphasises visual-field defects that may accompany glaucoma. Assessment concerns the disease’s effect on the visual abilities required for driving.

The pseudophakia section refers to visual-acuity requirements. Lens implantation does not replace assessment of whether the vision requirements are met.